Format the identifier first
Send one number in E.164 form with its country code, for example +17253100591.
Synchronous Telegram API
Verify Telegram Phone Numbers Instantly
Submit one number and know instantly whether it is on Telegram. The SaaS dashboard answers on the spot; the synchronous REST API returns JSON in the same response.
POST /api/v1/demo/checkLive demo
No sign-in required.
Quickstart
From request to result in three steps
1Create an accountSign up to access the dashboard and manage your profile and API keys from one place.
2Run a checkBalance is deducted up front for each check. If the check fails or the result is undetermined, the balance is automatically refunded — you only pay for a usable result.
3Review usageSee recent checks, balance spend, and 7-day trends in the dashboard.
Check contract
How a realtime check works
Read the returned field
The registration check (tg) returns registration status in the registered field.
Collect the result
Single and multi checks return JSON in the same response for your workflow to read immediately.
Verification product
Telegram registration check
Use cases
Use Telegram validation wherever a number needs a clear status
Form and lead qualification
Check a newly captured number before creating a CRM record, assigning an owner, or starting a consent-aware follow-up.
Real-time CRM enrichment
Add the Telegram registration result while a CRM, sales, or support record is created, reviewed, or updated.
Routing and support workflows
Use the synchronous response in backend rules or support tools when the next action depends on a current Telegram signal.
Latest guides
Recent Telegram verification guides
Practical articles on Telegram checks, API integration, and verification workflows.
Verification workflowsSep 26, 2026
Carrier and Line-Type Data: The Complete Guide
Understand carrier and line-type data, mobile portability, and platform reachability signals to improve routing and message delivery workflows.
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Verification workflowsSep 26, 2026
What Silent Platform Registration Checks Mean for Modern Workflows
Learn what a silent platform registration check is, how it differs from carrier authentication, and how teams use registration signals in data workflows.
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Verification workflowsSep 26, 2026
What Is an HLR Lookup? A Plain-English Definition
Learn what an HLR lookup is, what network data it reveals, and how it differs from messaging platform registration checks in technical workflows.
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Verification workflowsSep 25, 2026
Mobile, Landline, or VoIP: Understanding Phone Number Line Types
Explore what phone number line type means across mobile, landline, and VoIP networks, and how it informs messaging and reachability workflows.
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Verification workflowsSep 25, 2026
Verifying Numbers Before an SMS Marketing Campaign: List Hygiene and Reachability
Learn how pre-campaign phone number verification and Telegram registration signals help teams refine list hygiene, segment outreach, and reduce waste.
Read article
Verification workflowsSep 25, 2026
What Is E.164? The International Phone Number Format Explained
Learn what E.164 phone number format is, how it is structured up to 15 digits, and why digital verification APIs require it for accurate normalization.
Read articleFAQ
Telegram number check FAQ
Answers on Telegram registration, balance, API access, and failed validations.
How do I check if a number is on Telegram?
Submit one number and TG Validator returns whether it is registered on Telegram in the same response: the tg product returns the registered field. There is no task queue, no polling and no callbacks. Message content is never checked.
Is the Telegram check real time?
Yes. Once a number is submitted, the result comes back in the same HTTP response — no task queue, no polling, no callbacks — and a single number typically answers in about a second. The dashboard, the single-number API and the synchronous multi-number API all run the same Telegram verdict against the same balance, so they agree. Each result reflects registration status at the moment of the check; run the check again whenever you need a current answer.
How is balance charged?
Permanent balance is a one-time purchase and does not renew. 30-day plan balance is valid for 30 days from payment; unused balance expires at the end of the current cycle. Plans renew automatically every 30 days until you turn off auto-renewal. Turning it off stops future charges; the current plan stays usable until it expires. Checks that fail or are undetermined are refunded to the relevant wallet.
How do I get the 100 free checks?
Create a free account and contact support for 100 free checks, usable on any product; you can top up at any time.
Which payment methods are supported?
Permanent top-ups can be paid by credit card, other supported card payments, or cryptocurrency. 30-day plans use secure hosted card checkout and renew every 30 days. Card payments carry no extra fee. Cryptocurrency may include a service fee, shown at checkout.
How do I call the TG Validator API?
Create an API key in Settings, then call /api/v1/check with the X-API-Key header, an E.164 number and service_type=tg. The registration result comes back in that same JSON response; several numbers can be sent together through the synchronous multi endpoint.
Does a registered result mean I can contact the number?
No. A result reports Telegram registration status at the time of the check. You remain responsible for consent, recipient preferences, and applicable platform rules before contacting anyone.